Example of Use of Calling Conventions.

Function is : 

void    calltype MyFunc( char c, short s, int i, double f );
.
.
.
void    MyFunc( char c, short s, int i, double f )
    {
    .
    .
    .
    }
.
.
.
MyFunc ('x', 12, 8192, 2.7183);

1 . _cdecl :

 The C decorated function name is "_MyFunc.

The __cdecl calling convention

2 . stdcall and thiscall : The C decorated name (__stdcall) is "_MyFunc@20." The C++ decorated name is proprietary.

The __stdcall and thiscall calling conventions

3. __fastcall: The C decorated name (__fastcall) is "@MyFunc@20." The C++ decorated name is proprietary.

The __fastcall calling convention

4. __stdcall and thiscall : The C decorated name (__stdcall) is "_MyFunc@20." The C++ decorated name is proprietary.

The __stdcall and thiscall calling conventions

5. __fastcall: The C decorated name (__fastcall) is "@MyFunc@20." The C++ decorated name is proprietary.

The __fastcall calling convention